80
Checking the settings
YES
YES
YES
YES
Are the AVR-1912/2112CI's network settings correct?
Are the router, hub and other peripherals properly connected?
Are the router's settings correct?
Set the IP address and other parameters
properly. For a xed IP setting, check
whether the IP address is redundant with
that of other devices and the subnet mask
setting is correct.
Connect them properly to peripherals.
Check the router's operating instructions
and set it properly.
Check whether there are connection
restrictions due to the MAC address, etc.
NO
NO
NO
5. Network/USB
5.1. Cannot connect to network
YES
Is the LAN cable properly connected?
Turn off the power and check the LAN cable
properly, and then turn the power back on.
NO
Checking the environment
The IC14 and surrounding circuitry are defective.
Checking the set (AVR-1912/2112CI)
YES
YES
YES
YES
Is output voltage (3.3V) supplied from IC1?
Is output voltage (1.2V) supplied from IC6?
Is the version of IMG or Ethernet SBL displayed in Version check
mode?
Is a voltage (5V) supplied between the pins 1 and 4 of CX1?
The IC1 and surrounding circuitry or
circuitry of 3.3v device are defective.
The IC6 or IC17 and surrounding circuitry
are defective.
The rmware of ethernet is defective.
The circuit from AC inlet to CX1 is defective.
NO
NO
NO
NO
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